Kusoglu, A., Stuchbery, A. E., Georgiev, G., Brown, B. A., Goasduff, A., Atanasova, L., Balabanski, D. L., Bostan, M., Danchev, M., Detistov, P., Gladnishki, K. A., Ljungvall, J., Matea, I., Radeck, D., Sotty, C., Stefan, I., Verney, D. and Yordanov, D. T. (2015). Magnetism of an Excited Self-Conjugate Nucleus: Precise Measurement of the g Factor of the 2(1)(+) State in Mg-24. Phys. Rev. Lett., 114 (6). COLLEGE PK: AMER PHYSICAL SOC. ISSN 1079-7114

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Abstract

A precise measurement of the g factor of the first-excited state in the self-conjugate (N = Z) nucleus Mg-24 is performed by a new time-differential recoil-in-vacuum method based on the hyperfine field of hydrogenlike ions. Theory predicts that the g factors of such states, in which protons and neutrons occupy the same orbits, should depart from 0.5 by a few percent due to configuration mixing and meson-exchange effects. The experimental result, g = 0.538 +/- 0.013, is in excellent agreement with recent shell-model calculations and shows a departure from 0.5 by almost 3 standard deviations, thus achieving, for the first time, the precision and accuracy needed to test theory. Proof of the new method opens the way for wide applications including measurements of the magnetism of excited states of exotic nuclei produced as radioactive beams.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Kusoglu, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Stuchbery, A. E.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Georgiev, G.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Brown, B. A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Goasduff, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Atanasova, L.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Balabanski, D. L.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bostan, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Danchev, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Detistov, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gladnishki, K. A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ljungvall, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Matea, I.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Radeck, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Sotty, C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Stefan, I.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Verney, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Yordanov, D. T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-407663
DOI: 10.1103/PhysRevLett.114.062501
Journal or Publication Title: Phys. Rev. Lett.
Volume: 114
Number: 6
Date: 2015
Publisher: AMER PHYSICAL SOC
Place of Publication: COLLEGE PK
ISSN: 1079-7114
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
Physics, MultidisciplinaryMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/40766

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